HAWAII KAI, Hawaii (KHON2) -- Coast Guard officials confirmed they are investigating what happened to a group of divers who were lost at sea for about an hour and a half. The boat captain who helped in the rescue said it's scary to think what could have happened. Download the free KHON2 app for iOS or Android to stay informed on the latest news Five divers were rescued about a mile off Hawaii Kai. They were found because of lucky timing. "My husband started hearing sounds of screaming for help," said Camila Storchi, Holding Fast captain. "I didn't hear the sounds, the screaming, and he asked me to turn off the music. And we start scanning the horizon and then we saw these little dots afar." 3 rescued after boat capsizes offshore of Lanai "If we were 15 minutes far behind, we would probably not have seen them," said Strochi. "And who knows when the captain would have put an alert out there." The incident happened last Wednesday afternoon. The divers said they'd drifted from their boat and had been lost for about an hour and a half. Storchi said there was no call for any missing divers at the time, so she thought the group came in from shore, not from a dive tour. "They asked us to retrieve the one that was in the bad shape," said Storchi. "He was gray and he had been thrown up and we tried to get him on board. And it was very hard." A Coast Guard helicopter spotted the group and the original tour boat picked up the divers. "My husband, as a professional mariner, he got, like, his anxiety level really just thinking what could have happened," said Storchi. The tour was booked with Aaron's Dive Shop in Kailua. In a statement, owner Warren Murray said they are grateful that all divers returned safely and without injury and thanked the Good Samaritans who assisted in finding the divers. Murray stated the boat's captain and the dive leader made a last-minute change to the dive site but didn't follow the proper protocol. Get Hawaii's latest morning news delivered to your inbox, sign up for News 2 You "Losing a diver, it happens," said Strochi. "People make mistakes. It's ok. But what's not ok is not reporting the incident." Murray said the dive shop is reviewing its protocols with staff to prevent similar incidents from happening again.